Hi, please help. 
I'm writing an invitation letter for my boyfriend to visit me here in Canada. However, I am kinda worried that immigration may deny his application if they found out that we are in a relationship, since I read a lot of posts here that they will surely deny the application if they found out that you are visiting a fiance.
(we are not engaged by the way)
If we will only mention that we are only good friends, will that be a good idea?
will the immigration ask further about our relationship? or will they possibly suspect that we are engaged?

I'm writing an invitation letter for my boyfriend to visit me here in Canada. However, I am kinda worried that immigration may deny his application if they found out that we are in a relationship, since I read a lot of posts here that they will surely deny the application if they found out that you are visiting a fiance.
(we are not engaged by the way)
If we will only mention that we are only good friends, will that be a good idea?
will the immigration ask further about our relationship? or will they possibly suspect that we are engaged?